Dioptase on Calcite
Availability: 1 in stock
A knob of glassy rhombohedral calcites with some dark brown terminal edges (likely from hematite) coated with bright sparkling emerald green dioptase. Only points of contact are on the back of the specimen.
Locality: Tsumeb Mine, Tsumeb Namibia
Composition: Hydrous Copper Silicate and Calcium Carbonate